CHEMICALLY MODIFIED CLAYS USED FOR ENVIRONMENTAL QUALITY
NICOLETA PLATON1, ANA-MARIA ROŞU 1, VASILICA ALISA ARUŞ 1, DENISA ILEANA NISTOR 1, ILIE SIMINICEANU 2 1”Vasile Alecsandri” University of Bacau, Faculty of Engineering, Department of Chemical and Food Engineering, 157 Calea Marasesti, 600115 Bacau, Romania
2”Gheorghe Asachi” Technical University of Iaşi, Department of Chemical Engineering, 73 Mangeron Blv., 700050 Iasi, Romania
In this work, catalysts were synthesized based on chemically modified clays through pillaring process with Al (III) and Fe (III) using commercial bentonite and acid-treated montomorillonite like KSF montmorillonite and K10 montmorillonite from Aldrich, as raw materials. The raw materials and chemically modified clays were characterized by: BET (Brunauer-Emmet-Teller) method and XRD (X-ray diffraction). Afterwards these catalysts were tested during wet oxidation with peroxides using phenol as target compound. Experimental results show that chemically modified clays with Fe(III) presented a higher catalytic activity in Fenton like processes than Al-Fe clays.
